Convert //ios from scoped_ptr to std::unique_ptr.

ios/chrome/browser/metrics/ios_chrome_metrics_services_manager_client.mm

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ios/chrome/browser/metrics/ios_chrome_metrics_services_manager_client.h"
 
 #include "base/command_line.h"
 #include "base/logging.h"
+#include "base/memory/ptr_util.h"
 #include "components/metrics/metrics_state_manager.h"
 #include "components/prefs/pref_service.h"
 #include "components/rappor/rappor_service.h"
 #include "components/variations/service/variations_service.h"
 #include "ios/chrome/browser/application_context.h"
 #include "ios/chrome/browser/chrome_switches.h"
 #include "ios/chrome/browser/metrics/ios_chrome_metrics_service_accessor.h"
 #include "ios/chrome/browser/metrics/ios_chrome_metrics_service_client.h"
 #include "ios/chrome/browser/ui/browser_otr_state.h"
 #include "ios/chrome/browser/variations/ios_chrome_variations_service_client.h"
 #include "ios/chrome/browser/variations/ios_ui_string_overrider_factory.h"
 #include "ios/public/provider/chrome/browser/chrome_browser_provider.h"
 
 namespace {
 
 void PostStoreMetricsClientInfo(const metrics::ClientInfo& client_info) {}
 
-scoped_ptr<metrics::ClientInfo> LoadMetricsClientInfo() {
-  return scoped_ptr<metrics::ClientInfo>();
+std::unique_ptr<metrics::ClientInfo> LoadMetricsClientInfo() {
+  return std::unique_ptr<metrics::ClientInfo>();
 }
 
 }  // namespace
 
 IOSChromeMetricsServicesManagerClient::IOSChromeMetricsServicesManagerClient(
     PrefService* local_state)
     : local_state_(local_state) {
   DCHECK(local_state);
 }
 
 IOSChromeMetricsServicesManagerClient::
     ~IOSChromeMetricsServicesManagerClient() = default;
 
-scoped_ptr<rappor::RapporService>
+std::unique_ptr<rappor::RapporService>
 IOSChromeMetricsServicesManagerClient::CreateRapporService() {
   DCHECK(thread_checker_.CalledOnValidThread());
-  return make_scoped_ptr(new rappor::RapporService(
+  return base::WrapUnique(new rappor::RapporService(
       local_state_, base::Bind(&::IsOffTheRecordSessionActive)));
 }
 
-scoped_ptr<variations::VariationsService>
+std::unique_ptr<variations::VariationsService>
 IOSChromeMetricsServicesManagerClient::CreateVariationsService() {
   DCHECK(thread_checker_.CalledOnValidThread());
 
   // NOTE: On iOS, disabling background networking is not supported, so pass in
   // a dummy value for the name of the switch that disables background
   // networking.
   return variations::VariationsService::Create(
-      make_scoped_ptr(new IOSChromeVariationsServiceClient), local_state_,
+      base::WrapUnique(new IOSChromeVariationsServiceClient), local_state_,
       GetMetricsStateManager(), "dummy-disable-background-switch",
       ::CreateUIStringOverrider());
 }
 
-scoped_ptr<metrics::MetricsServiceClient>
+std::unique_ptr<metrics::MetricsServiceClient>
 IOSChromeMetricsServicesManagerClient::CreateMetricsServiceClient() {
   DCHECK(thread_checker_.CalledOnValidThread());
   return IOSChromeMetricsServiceClient::Create(GetMetricsStateManager(),
                                                local_state_);
 }
 
 net::URLRequestContextGetter*
 IOSChromeMetricsServicesManagerClient::GetURLRequestContext() {
   return GetApplicationContext()->GetSystemURLRequestContext();
 }
@@ skipping 18 matching lines @@
   DCHECK(thread_checker_.CalledOnValidThread());
   if (!metrics_state_manager_) {
     metrics_state_manager_ = metrics::MetricsStateManager::Create(
         local_state_, base::Bind(&IOSChromeMetricsServiceAccessor::
                                      IsMetricsAndCrashReportingEnabled),
         base::Bind(&PostStoreMetricsClientInfo),
         base::Bind(&LoadMetricsClientInfo));
   }
   return metrics_state_manager_.get();
 }